CN111633511A - Unconstrained self-adaptive spherical surface lapping method and device - Google Patents
Unconstrained self-adaptive spherical surface lapping method and device Download PDFInfo
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- CN111633511A CN111633511A CN202010441140.8A CN202010441140A CN111633511A CN 111633511 A CN111633511 A CN 111633511A CN 202010441140 A CN202010441140 A CN 202010441140A CN 111633511 A CN111633511 A CN 111633511A
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- 230000003044 adaptive effect Effects 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 claims description 2
- 230000002262 irrigation Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims 1
- 238000007790 scraping Methods 0.000 abstract description 3
- 238000005304 joining Methods 0.000 description 7
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
- B24B15/08—Machines or devices designed for grinding seat surfaces; Accessories therefor for grinding co-operating seat surfaces by moving one over the other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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Abstract
The invention belongs to the technical field of spherical matching and grinding machinery, and particularly relates to an unconstrained self-adaptive spherical matching and grinding method and device. The invention provides a method and a device for unrestraint self-adaptive spherical surface lapping, aiming at the problem that in the prior art, the lapping precision is influenced by the scraping tendency of manual intervention factors such as rocker arms, hinges and shaking center adjustment on the lapped spherical surface. The invention applies intermittent or continuous driving force by utilizing the point contact driving mechanism in the engineering sense that the point contact driving mechanism is not connected with the spherical surface concave part and the spherical surface convex part, so that the driving mechanism can not generate constraint on six degrees of freedom of the spherical surface concave part and the spherical surface convex part in the process of driving the lapping, the constraint of manually arranged parts on a lapping workpiece is eliminated to the maximum extent, the spherical surface concave part and the spherical surface convex part can automatically adapt to the size and the direction of a component force which is caused by gravity and acts on the lapping surface in a free state, the scraping tendency is avoided between the spherical surface concave part and the spherical surface convex part, and the lapping precision is improved.
Description
Technical Field
The invention belongs to the technical field of spherical surface matching grinding machinery, and particularly relates to an unconstrained self-adaptive spherical surface matching grinding method and device.
Background
In the actual production manufacturing process, there are many demands for spherical surface matching. Taking a plunger pump as an example, spherical contact surfaces of an oil cylinder and a valve plate in the plunger pump need to be matched and ground, so that the two are in close contact as possible, and good sealing in the rotating process is ensured. In the prior art, the method for matching and grinding is mainly characterized in that a spherical surface concave part is arranged at the lower part, a spherical surface convex part is arranged at the upper part, and matching and grinding are carried out in a hinged mode, an eccentric wheel mode and the like. The mechanical structure has some artificial increased constraints, the degree of freedom is reduced, the force size and the force direction need to be adjusted according to the shape and the size of a matched workpiece during operation, and if the force is not adjusted properly, the two spherical surfaces tend to be scraped during matching, so that the matching precision is influenced.
For example, the chinese utility model patent discloses a spherical lapping machine [ application number: 201320286749.8], the utility model discloses a, including hydro-cylinder, valve plate and sphere grinder, its characterized in that, the sphere grinder includes eccentric pendulous device and chuck, and eccentric pendulous device includes swing arm, counterweight rod, pendulum rod and two eccentric discs, the counterweight is installed on the counterweight rod, and the valve plate is installed at the end of pendulum rod, and the other end of pendulum rod and counterweight rod cross connection, the other end of counterweight rod and swing arm connection, the swing arm is fixed respectively on two eccentric discs through the bolt, and two eccentric discs are fixed on the frame; the oil cylinder is fixed on the chuck, and the chuck can rotate around the central shaft.
The utility model discloses an adopt the eccentric wheel to drive the joining in marriage of port plate mode of grinding promptly, its rocking arm, chuck, eccentric pendulous device etc. all can produce the restraint to the work piece of joining in marriage grinding, if adjust out of order, have the tendency of scraping between two spheres when joining in marriage grinding, influence the problem of the precision of joining in marriage grinding.
Disclosure of Invention
The invention aims to solve the problems and provides a unconstrained adaptive spherical surface lapping method capable of improving the lapping precision.
Compared with other research methods and devices, the key point of the invention is the innovation of research principle, and the characteristic of unconstrained self-adaption is substantially different from other research methods and devices. The invention does not apply any degree of freedom constraint on the matched and ground workpiece, but only applies point contact driving force and point contact limit on the workpiece in the engineering sense. The lapping movement of the two workpieces is completely carried out under an unconstrained condition, and the force required for lapping is only dependent on the self weight of the lapping workpieces (a counterweight can be added if necessary), and the direction of the lapping is the gravity direction. Therefore, the device manufactured according to the invention does not have the adjustment operations of the swing center, the radius of the swing arm, the hinge flexibility, the size and the direction of the lapping force and the like, only needs to limit the position of the workpiece to be kept in a certain area, drives the lapping workpiece to swing back and forth through point contact, and completes the self-adaptive lapping by means of the gravity and the combined motion of the swinging and the relative rotation of the lapping workpiece.
The lapping motion of the present invention is a compound motion of relative rocking and relative rotation of both lapping workpieces. The workpiece can be driven to rock by a deflector rod on the outer side of the workpiece or a deflector rod inserted into a hole groove on the workpiece, and the movement of the deflector rod can be linear movement or circular movement. In any case, the deflector rod and the workpiece are point contacts in the engineering sense. The present invention requires the workpiece to be driven in a rotational motion, and the two parts of the workpiece must have relative rotational motion regardless of the direction of rotation.
To achieve the above object, the present invention provides an implementation apparatus, which is provided with a hole in a workpiece, thereby using a composite drive in which a driving rod performs rotation and rocking deep into the hole. Other shapes of workpieces may employ alternative drive means. The specific technical scheme is as follows:
a constraint-free self-adaptive spherical surface lapping device comprises a driving mechanism capable of driving a spherical surface concave part and a spherical surface convex part to slide relatively, wherein the driving mechanism drives the spherical surface concave part or the spherical surface convex part, and in the driving process, the driving mechanism is moved to enable the driving mechanism to be in contact with or separated from the spherical surface concave part or the spherical surface convex part.
In the above unconstrained adaptive spherical lapping device, the bottom surface of the concave spherical part has an inwardly concave surface, the upper surface of the convex spherical part has an outwardly convex surface, the concave spherical part is disposed on the convex spherical part, and the concave surface is attached to the convex surface.
In the above unconstrained adaptive spherical surface lapping device, the side wall of the spherical surface concave part near one end of the spherical surface convex part may be provided with a plurality of detachable clump weights as required, the clump weights are circumferentially arranged along the outer side wall of the spherical surface concave part, and the arrangement positions and weights are symmetrically distributed with respect to the swing direction.
The unconstrained self-adaptive spherical surface lapping device further comprises an installation frame, the driving mechanism and the spherical surface outer convex part are arranged on the installation frame, the spherical surface inner concave part is attached to the surface of the spherical surface outer convex part, the driving mechanism drives the spherical surface inner concave part, and the driving mechanism and the spherical surface inner concave part are in point contact in the engineering sense when in contact.
In the above unconstrained adaptive spherical surface lapping device, the driving mechanism includes a driving component and a transmission component which are connected with each other, a connecting block rotatably connected with the mounting frame is arranged between the driving component and the transmission component, and the connecting block is fixedly connected with both the driving component and the transmission component. All mechanism parts do not constrain the six degrees of freedom of the workpiece being lapped.
In the above unconstrained adaptive spherical surface lapping device, the driving assembly includes a driving rod and a driving arm which are fixedly connected, the connecting block is fixedly connected to one end of the driving arm far away from the driving rod, the unconstrained adaptive spherical surface lapping device further includes a driving motor, the driving turntable is in driving connection with the driving motor, one end of a driving push rod between the driving turntable and the driving rod is connected to the driving rod, and the other end of the driving push rod is connected to the driving turntable.
In the above unconstrained adaptive spherical surface lapping device, the transmission assembly includes a transmission rod and a transmission arm which are fixedly connected, the transmission arm is provided with a driving short rod, the driving short rod is located above the spherical surface concave part, the upper surface of the spherical surface concave part is provided with a plurality of driving channels, one end of the driving short rod, which is far away from the driving rod, extends into the driving channels, and the front end of the driving short rod is provided with a small disc or a small ball, the diameter of which is smaller than that of the driving channels, so as to ensure that the small disc or the small ball drives the workpiece through point contact.
In the unconstrained adaptive spherical surface lapping device, the transmission rod is provided with the rotating motor, the rotating platform is in driving connection with the rotating motor, at least two driving short rods are arranged, one end of each driving short rod is fixedly connected onto the rotating platform, and the other end of each driving short rod extends into the driving channel.
In the above unconstrained adaptive spherical surface lapping device, the driving mechanism includes a driving block sleeved on the spherical surface concave part, two sides of the driving block are respectively provided with a group of linear driving structures for pushing the driving block, a side surface of the driving block is provided with a limiting groove, an extending direction of the limiting groove is the same as an extending direction of the linear driving structures, and the unconstrained adaptive spherical surface lapping device further includes a limiting strip fixedly connected to the mounting frame, the limiting strip extends into the limiting groove, and a gap is formed between an outer surface of the limiting strip and an inner surface of the limiting groove. The limiting groove does not restrict six degrees of freedom of the workpiece to be ground.
An unconstrained adaptive spherical surface lapping method comprises the following steps:
the method comprises the following steps: placing the spherical outer convex part on the mounting frame, and then placing the spherical inner concave part on the spherical outer convex part in a fitting manner;
step two: the spherical convex part is rotated by using a driving mechanism;
step three: the driving mechanism drives the spherical surface concave part to do composite motion of shaking and rotating, the spherical surface concave part is pressed on the spherical surface convex part under the action of gravity, and the spherical surface concave part and the spherical surface convex part slide relatively;
step four: the lapping abrasive is added to the lapping surface while the spherical concave part and the spherical convex part slide relatively. The method of adding the lapping abrasive can be determined based on the shape of the lapping member. For a workpiece with a hole, the abrasive can be dripped on the lapping surface through the hole on the workpiece; the workpiece without holes can be lifted up by a mechanism periodically to spray the abrasive onto the lapping surface.
Compared with the prior art, the invention has the advantages that:
1. the invention utilizes the point contact driving mechanism which is not connected with the spherical surface concave part to continuously or intermittently apply driving force to the spherical surface concave part, thus, in the process of lapping, the driving mechanism can not generate constraint on 6 degrees of freedom of the spherical surface concave part, so that the spherical surface concave part is in an unconstrained state, a lapping workpiece automatically adapts and distributes component force of gravity on the lapping surface, manual intervention is avoided, and the influence on the precision of lapping caused by improper manual adjustment is avoided.
2. The rotary platform capable of driving the spherical convex part to rotate is arranged, so that the spherical concave part can rotate relative to the spherical convex part while sliding for matching, and the matching efficiency is improved.
3. According to the invention, the balancing weights which are symmetrically distributed relative to the shaking plane of the spherical surface concave part are arranged on the side wall of one end of the spherical surface concave part close to the spherical surface convex part, so that the integral gravity center of the spherical surface concave part moves downwards and is closer to the lapping surface, the stability of the lapping process of the spherical surface concave part is ensured, and the lapping effect is improved on the premise of not increasing the constraint.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of a drive mechanism in embodiment 1 of the invention;
FIG. 3 is a sectional view of embodiment 1 of the present invention;
in the figure: the spherical surface concave part 1, the spherical surface convex part 2, the driving mechanism 3, the mounting frame 4, the concave surface 11, the driving channel 12, the convex surface 21, the driving component 31, the transmission component 32, the connecting block 33, the driving rod 311, the driving arm 312, the driving motor 313, the driving turntable 314, the driving push rod 315, the driving rod 321, the driving arm 322, the driving short rod 323, the rotating motor 324 and the rotating platform 325.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
The embodiment provides an unconstrained adaptive spherical surface lapping device, as shown in fig. 1, which includes a driving mechanism 3 capable of driving a relative sliding between a concave spherical component 1 and a convex spherical component 2, where the driving mechanism 3 drives the concave spherical component 1, and during the driving process, the driving mechanism 3 is moved to drive the concave spherical component in a point contact manner, preferably, the bottom surface of the concave spherical component 1 has an inward concave surface 11, the upper surface of the convex spherical component 2 has an outward convex surface 21, the concave spherical component 1 is placed on the convex spherical component 2, and the concave surface 11 and the convex surface 21 are attached, and if necessary, a counterweight may be added to the concave spherical component, so as to improve the stability of the lapping process and improve the lapping efficiency.
According to the invention, taking the example that the spherical concave part 1 is placed above the spherical convex part 2 for matching, when in use, the spherical outer convex part 2 is placed on the mounting frame 4, and then the spherical inner concave part 1 is attached to the spherical convex part 2; a driving mechanism 3 is utilized to apply a point contact driving force to the spherical concave part 1, so that the spherical concave part swings and rotates; the grinding materials are added on the surface to be ground in a drip irrigation or spraying mode, and the spherical surface concave part 1 slides back and forth relative to the spherical surface outer convex part 2 until the grinding is finished. Therefore, the driving mechanism 3 in point contact with the spherical concave part 1 is utilized to continuously or intermittently apply driving force to the spherical concave part 1, so that the driving mechanism 3 can not generate constraint on the 6-degree-of-freedom uniform distribution of the spherical concave part 1 in the matching process. Compared with the articulated connection mode adopted in the prior art, the spherical concave part 1 has 6 degrees of freedom on 3 axes and has no constraint. The invention only limits the shaking range of the spherical concave part, and the limitation does not restrict the degree of freedom of the spherical concave part.
Preferably, the side wall of the spherical surface concave part 1 close to one end of the spherical surface outer convex part 2 can be provided with a plurality of detachable balancing weights according to needs, and the balancing weights are symmetrically distributed along the circumferential direction of the outer side wall of the spherical surface concave part 1 relative to the shaking plane of the spherical surface concave part. According to the invention, the balancing weight is arranged on the side wall of one end of the spherical surface concave part 1 close to the spherical surface outer convex part 2, so that the integral gravity center of the spherical surface concave part 1 moves downwards and is closer to the lapping surface, thereby ensuring the stability of the lapping process of the spherical surface concave part 1 and improving the lapping efficiency.
Combine fig. 1 and fig. 2 to show, still include mounting bracket 4, actuating mechanism 3 and spherical surface outer convex part 2 all set up on mounting bracket 4, the laminating of spherical surface inner concave part 1 is on spherical surface outer convex part 2 surface, actuating mechanism 3 drives spherical surface inner concave part 1, and is the point contact on the engineering meaning when actuating mechanism 3 contacts with spherical surface inner concave part 1.
Referring to fig. 1 to 3, the driving mechanism 3 includes a driving component 31 and a transmission component 32 connected to each other, a connection block 33 rotatably connected to the mounting frame 4 is disposed between the driving component 31 and the transmission component 32, and the connection block 33 is fixedly connected to both the driving component 31 and the transmission component 32. In use, the drive assembly 31 and the transmission assembly 32 will oscillate about the connecting block 33, thereby driving the concave spherical surface element 1 to rock.
As shown in fig. 3, the driving assembly 31 includes a driving rod 311 and a driving arm 312 fixedly connected to each other, a connecting block 33 is fixedly connected to one end of the driving arm 312, which is far away from the driving rod 311, and further includes a driving motor 313, a driving turntable 314 is drivingly connected to the driving motor 313, one end of a driving push rod 315 located between the driving turntable 314 and the driving rod 311 is connected to the driving rod 311, the other end is connected to the driving turntable 314, and a connection point of the driving push rod 315 and the driving turntable 314 does not coincide with a center of the driving turntable 314, so that when the driving turntable 314 rotates, the driving rod 311 can be pushed to and fro by the driving push rod 315, the driving assembly 32 includes a driving rod 321 and a driving arm 322 fixedly connected to each other, a driving short rod 323 is disposed on the driving arm 322, the driving short rod 323 is located above the spherical concave part 1, the upper, the end of the driving short bar 323 away from the driving bar 321 extends into the driving channel 12, and the diameter of the driving short bar 323 is smaller than that of the driving channel 12, ensuring that the driving force is transmitted as the spherical concave part 1 in a point contact manner in an engineering sense.
When the spherical surface concave part 1 passes through the highest point of the convex surface 21, the spherical surface concave part 1 slides downwards under the action of gravity, the driving channel 12 is separated from the driving short rod 323 until the spherical surface concave part 1 reaches the bottom of the other end, the driving short rod 323 drives the spherical surface concave part 1 reversely, so that intermittent driving is realized, and the freedom degree of the spherical surface concave part 1 is not restrained. The front end of the driving short rod 323 is provided with a disk or a ball with a diameter smaller than that of the driving channel, and point contact continuous driving with a constantly changing driving point can also occur under the condition of meeting the operating condition.
Preferably, the transmission rod 321 is provided with a rotating motor 324, the rotating platform 325 is in driving connection with the rotating motor 324, the number of the driving short rods 323 is at least two, for example, 3, and one end of each driving short rod 323 is fixedly connected to the rotating platform 325, and the other end extends into the driving channel 12. The invention is provided with the rotary platform 325 which can drive the spherical surface concave part 1 to rotate, so that the spherical surface concave part 1 can rotate relative to the spherical surface convex part 2 while sliding for matching, and the matching efficiency is improved.
Example 2
The embodiment provides an unconstrained adaptive spherical surface lapping device, which has a specific structure substantially the same as that in embodiment 1, and is different from the specific structure of the driving mechanism 3 only in that the driving mechanism 3 includes a driving block sleeved on the spherical surface concave part 1, two sides of the driving block are respectively provided with a group of linear driving structures for pushing the driving block, the linear driving structures are used for driving the spherical surface concave part 1 so that the spherical surface concave part 1 swings back and forth on the spherical surface convex part 2, a side surface of the driving block is provided with a limiting groove, an extending direction of the limiting groove is the same as that of the linear driving structures, and the unconstrained adaptive spherical surface lapping device further includes a limiting strip fixedly connected to the mounting frame 4, the limiting strip extends into the limiting groove, and a gap is formed between an outer surface of the limiting strip and an inner surface of the limiting groove. Spacing strip and spacing recess cooperate and are used for restricting the direction of motion of concave part in the sphere 1, and have the clearance between the two and can prevent again that spacing strip and spacing recess from contacting and lead to the loss of the concave part in the sphere 1 degree of freedom, though the setting up in clearance can make concave part in the sphere 1 take place certain interval's disturbance in another direction in the course of joining up, but this kind of disturbance is allowed at the in-process of joining up in marriage and is ground, can not lead to the fact the influence to the precision of joining up in marriage and grinding.
The drive mechanism 3 may also be of other specific construction known in the art, as long as the purpose of continuous or intermittent drive of the spherical concave part 1 is achieved without constraining the 6 degrees of freedom of the spherical concave part 1 on the three axes.
Example 3
The embodiment provides an unconstrained adaptive spherical surface lapping method, which comprises the following steps:
the method comprises the following steps: placing the spherical surface outer convex part 2 on the mounting frame 4, and then placing the spherical surface inner concave part 1 on the spherical surface outer convex part 2 in an attaching manner;
step two: a driving mechanism 3 is used for applying a driving force to the spherical surface concave part 1 to make the spherical surface concave part rock and rotate;
step three: adding a grinding material to the lapping surface;
step four: and repeating the second step and the third step to enable the spherical surface concave part 1 to slide back and forth relative to the spherical surface convex part 2 until the completion of the research.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms spherical concave part 1, spherical convex part 2, driving mechanism 3, mounting frame 4, concave surface 11, driving channel 12, convex surface 21, driving assembly 31, transmission assembly 32, connecting block 33, driving rod 311, driving arm 312, driving motor 313, driving turntable 314, driving push rod 315, driving rod 321, driving arm 322, driving short rod 323, rotating motor 324, rotating platform 325, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides an unrestraint self-adaptation sphere lapping device, includes that the relative slip and the relative rotatory combined motion's of taking place actuating mechanism (3) between spherical concave part (1) and spherical convex part (2), its characterized in that: the driving mechanism (3) drives the spherical surface concave part (1) or the spherical surface convex part (2), and in the driving process, the driving mechanism (3) can be moved to enable the driving mechanism (3) to be in contact with or separated from the spherical surface concave part (1) or the spherical surface convex part (2).
2. The unconstrained adaptive sphere lapping device of claim 1, wherein: the bottom surface of the spherical concave part (1) is provided with an inwards concave surface (11), the upper surface of the spherical convex part (2) is provided with an outwards convex surface (21), the spherical concave part (1) is arranged on the spherical convex part (2), and the concave surface (11) is attached to the convex surface (21).
3. The unconstrained adaptive sphere lapping apparatus of claim 2, wherein: the lateral wall that the sphere surface concave part (1) is close to spherical surface convex part (2) one end can be this as required and can dismantle the balancing weight a plurality of, the balancing weight is along the configuration of sphere surface concave part (1) lateral wall, and position and focus upward to shaking direction symmetric distribution.
4. The unconstrained adaptive sphere lapping device of claim 1, wherein: still include mounting bracket (4), actuating mechanism (3) and spherical surface external convex part (2) all set up on mounting bracket (4), spherical surface internal concave part (1) laminating is on spherical surface external convex part (2) surface, actuating mechanism (3) drive spherical surface internal concave part (1), and actuating mechanism (3) are the point contact in the engineering meaning when contacting with spherical surface internal concave part (1).
5. The unconstrained adaptive sphere lapping device of claim 1, wherein: actuating mechanism (3) are including interconnect's drive assembly (31) and transmission assembly (32), be equipped with between drive assembly (31) and transmission assembly (32) and rotate connecting block (33) of being connected with mounting bracket (4), connecting block (33) and drive assembly (31) and the equal fixed connection of transmission assembly (32).
6. The unconstrained adaptive sphere lapping device of claim 5, wherein: drive assembly (31) are including fixed connection's actuating lever (311) and actuating arm (312), connecting block (33) fixed connection is in the one end of actuating arm (312) keeping away from actuating lever (311), still include driving motor (313), drive carousel (314) are connected with driving motor (313) drive, drive push rod (315) one end that is located between drive carousel (314) and actuating lever (311) is connected on actuating lever (311), the other end is connected on drive carousel (314), and drive push rod (315) and the tie point of drive carousel (314) and the center of drive carousel (314) do not coincide mutually.
7. The unconstrained adaptive sphere lapping device of claim 5, wherein: drive assembly (32) are including fixed connection's transfer line (321) and transmission arm (322), be equipped with drive quarter butt (323) on transmission arm (322), drive quarter butt (323) are located the top of sphere internal concave spare (1), sphere internal concave spare (1) upper surface has a plurality of drive channel (12), and drive quarter butt (323) keep away from the one end of transfer line (321) and extend to inside drive channel (12), and this disc or the ball that has the diameter to be less than drive channel (12) of front end of drive quarter butt (323) to realize the point contact drive in the engineering meaning.
8. The unconstrained adaptive sphere lapping device of claim 7, wherein: the driving rod (321) is provided with a rotating motor (324), the rotating platform (325) is in driving connection with the rotating motor (324), at least two driving short rods (323) are arranged, one end of each driving short rod (323) is fixedly connected onto the rotating platform (325), and the other end of each driving short rod extends into the driving channel (12).
9. The unconstrained adaptive sphere lapping device of claim 1, wherein: actuating mechanism (3) establish the drive block on spherical surface concave part (1) including the cover, and the drive block both sides respectively are equipped with a set of sharp drive structure that is used for promoting the drive block, the drive block side is equipped with spacing recess, the extending direction of spacing recess is the same with the extending direction of sharp drive structure, still includes the spacing of fixed connection on mounting bracket (4), spacing extends to in the spacing recess, and has the clearance between spacing surface and the spacing recess internal surface.
10. An unconstrained adaptive spherical surface lapping method is characterized by comprising the following steps:
the method comprises the following steps: placing the spherical surface outer convex part (2) on the mounting frame (4), then placing the spherical surface inner concave part (1) on the spherical surface outer convex part (2) in a fitting manner, and applying abrasive on a lapping surface in a drip irrigation or spraying manner;
step two: a driving mechanism (3) is used for applying a driving force to the spherical surface concave part (1) to enable the spherical surface concave part to generate corresponding movement of relative sliding and relative rotation relative to the spherical surface convex part (2);
step three: the driving force provided by point contact is continuous or intermittent, when the driving mechanism (3) and the spherical surface outer convex part (2) are driven intermittently, the spherical surface outer convex part (2) can be separated temporarily, and the spherical surface inner concave part (1) slides relative to the spherical surface outer convex part under the action of gravity;
step four: and repeating the second step and the third step to enable the spherical surface concave part (1) to slide back and forth relative to the spherical surface convex part (2) until the completion of the matching.
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| CN207139530U (en) * | 2017-07-18 | 2018-03-27 | 邢台中伟卓特液压科技有限公司 | Sphere is to grinding machine |
| CN209831202U (en) * | 2019-04-22 | 2019-12-24 | 济南镇海机械厂 | Spherical grinding mechanism and plunger pump cylinder body and valve plate spherical grinding machine |
| CN212351452U (en) * | 2020-05-22 | 2021-01-15 | 浙江赛克思液压有限公司 | Unconstrained self-adaptive spherical surface lapping device |
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| US5097635A (en) * | 1990-08-06 | 1992-03-24 | Keystone Valvtron, Inc. | Method and apparatus for automatic ball to seat lapping |
| CN203418414U (en) * | 2013-05-24 | 2014-02-05 | 上海强亚机械制造厂 | Spherical surface facing-up grinder |
| CN105234774A (en) * | 2014-06-17 | 2016-01-13 | 北京华德液压工业集团有限责任公司 | Spherical surface grinding machine |
| CN207139530U (en) * | 2017-07-18 | 2018-03-27 | 邢台中伟卓特液压科技有限公司 | Sphere is to grinding machine |
| CN209831202U (en) * | 2019-04-22 | 2019-12-24 | 济南镇海机械厂 | Spherical grinding mechanism and plunger pump cylinder body and valve plate spherical grinding machine |
| CN212351452U (en) * | 2020-05-22 | 2021-01-15 | 浙江赛克思液压有限公司 | Unconstrained self-adaptive spherical surface lapping device |
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